Here's what rhymes with methanearsonic.
sonic phonic ionic tonic conic chronic ironic iconic mnemonic supersonic laconic symphonic subsonic monophonic bionic avionic harmonic hegemonic ultrasonic chorionic colonic demonic sardonic hypertonic isotonic monotonic platonic synchronic diatonic telephonic daemonic infrasonic acetonic embryonic tectonic planktonic polyphonic catatonic hydroponic stereophonic diachronic ganglionic histrionic philharmonic quadraphonic quadrophonic electronic pathognomonic architectonic microelectronic Words that almost rhyme with methanearsonic
atomic comic anatomic subatomic economic autonomic genomic diatomic uneconomic ergonomic agronomic astronomic taxonomic gastronomic tragicomic socioeconomic macroeconomic microeconomic folic hayrick logic topic melodic gothic atopic boric formic frolic nephrotic cirrhotic xenophobic seraphic rollick cosmic toxic aortic apostolic aquatic chaotic erotic exotic garlic neurotic philosophic caloric caustic episodic narcotic psychotic ascorbic metaphoric necrotic phenolic tropic anabolic anarchic basaltic biotic cathartic cathodic euphoric gnostic iambic karmic lethargic meiotic myopic bardic homoerotic heartsick misanthropic rhapsodic strophic subtopic carsick shopaholic historic symbolic alcoholic metabolic hydraulic biologic despotic diastolic geologic hypnotic neurologic systolic hyperbolic idiotic isotopic psychologic pyloric semiotic spasmodic symbiotic synoptic agnostic anoxic dialogic fibrotic melancholic meteoric nontoxic robotic sclerotic thrombotic demagogic diabolic folkloric hierarchic acrostic ecologic workaholic allegoric theosophic chopstick subtropic noncaloric shambolic chocoholic gynaecologic seismologic placekick chocaholic horologic microscopic periodic physiologic isotropic macroscopic pathologic philanthropic carbolic endoscopic immunologic metamorphic morphologic parabolic yardstick hematologic orthodontic pedagogic quixotic telescopic antarctic bucolic vitriolic gyroscopic subarctic sophomoric nonnarcotic aetiologic haematologic astronautic diagnostic patriotic antibiotic catastrophic cytotoxic histologic prognostic anisotropic epidemiologic etiologic pharmacologic gynecologic oligarchic psychotropic stereoscopic arthroscopic fluoroscopic kaleidoscopic microcosmic unpatriotic nonalcoholic submicroscopic hydrochloric prehistoric anthropomorphic atherosclerotic peristaltic polymorphic antispasmodic stroboscopic macrobiotic posthypnotic meteorologic spectroscopic electroscopic bacteriologic